Cabinet-top-lifting device



. H. K. SANDELL.

CABINET TOP L-IFTING DEVICE.`

APPLICATION man Ara. 29, 1920.

UNITED STATMES kA'lEN'l OFFlCE. i

HENRY K. SANDELL 0F CHICAG, ILLINOIS, ASSGNOR TO HERBERT S.

Minne, or

Cl-IGAG, ILLINOIS.

CABINET-TOELIFT]ENG DEVICE.

Application filed April 29,

.To all fic/wm it may conce/m ,Be it known that l, HENRY K. SANnnLL, acitizen of the United States, residing at Chicago, in the county of Cookand State of Illinois, have invented a new and useful lmprovcment inCabinet-Top-Lifting Devices, of which the following is a specification.

rlhe present invention relates to a cabinet top retaining and liftingdevice and is illustrated in the accompanying drawings as applied in oneembodiment to a cabinet for a talking machine. i

.ln the drawings` Figure l is a broken sectional View of a cabinet andtop, the top retaining and lifting device being shown in elevation, and

Fig. 2 is a broken sectional view on the line 2 of Fig. l, viewed in thedirection of the arrow.

Numeral 5 indicates the body of a cabinet, to which is secured top 6 bymeans of suitable hinges 7. A curved link S is pivotally attached at 9to a plate 10 secured to the top, and depends through an opening in thecover ll. of the cabinet into the latter. coiled spring l2 secured tothe wall of the cabinet in front of the link S is attached to the freeend of the link and draws the latter forward into movable engagementwith the fulcrum 13, which is shown as a roller `journaled slightlybelow the cover of the cabinet.

The link 8 is so curved that the pivot point 9 and part of the linkbelow fulcrum 13 are between the vertical line through the fulcrum point18"L (point of engagement) and the vertical line through the hinge T.The pivot point is so placed upon the top 6 with reference to the hingepoint T that its line of movement (the link 8 being regarded asmomentarily stationary) passes below the hinge point T when the top 6approaches or is in its closed position. It is preferably on ahorizontal line with hinge point 7 when the top is closed. As a resultof this arrangement, in closing the top, when the latter reaches aposition such that the momentary line of movement of point 9 is belowrpoint 7 (lever 8 being regarded as momentarily freely movable uponfulcrum point 13a), the force exerted by spring l2 tends to close thetop and when the top is closed, the same force tends to retain itclosed.

By reason of the slight rearward curvature of the portion of the link 8below point ll (the top being in closed position) when Specification ofLetters latent.

Patented Nev. 2, 1920. 1920. Serial No. 377,444.

the top is raised somewhat so thatv the line of movement of point 9(determined as above described) passes above point '7, the force ofspring l2 exerts a-lifting action upon the top andthe latter is .liftedthereby. Near its lower end the link 8 is curved forward (at Srl), thisforward curve acting as a stop in the upward movement of the top.

ln operation, the top of the cabinet beine' closed, it is liftedmanually until the li fting action of the spring is manifested, fromwhich point the top opens automatically until stopped by the forwardbend S of the link. lt is retained in the open or lifted position by thespring. To close the top, it is pushed down manually until near theclosed position, being thereupon pulled down and retained in the closedposition by the action of the spring'.

l. In combination, a cabinet, a top hingedly secured thereto, aVdepending link pivotally secured to the top, a lixed fulcrum movablyengaged by said link, and means for exerting a force upon the free endof the link, the pivot point and fulcrum of the link being so arrangedwith respect to the hinge for the top that the force exerted at saidpivot point is downward and thereby tends to retain the top in closedposition when the top is in or substantially near the closed p0- sition,and the force exerted at said pivot point tends to raise the top whenthe latter is raised from the closed position.

2. ln combination, a cabinet, a top hingedly secured thereto, adepending link pivotally secured to the top, a fixed fulcrum on thecabinet movably engaged by said link, and means for exerting a forwardlydirected force upon the free end of the link, the portion of the linking rearwardly inclined and the pivot point with the top closed being sopositioned that the momentary line of movement of the pivot point passesbelow the hinge point ofV the top.

3. In combination, a cabinet, a top hingedly secured thereto, adepending link pivotally secured to the top, a fixed fulcrum on thecabinet movably engaged by the link, and means for exerting a forwardlydirected force upon the free end of the link, the position of the linkabove the fulcrum point being rearwardly inclined and the pivot pointwith the top closed being positioned in horiabove the fulcrum point be-`iio Zontal alinement with the hinge point of the top.

4. In combination, a cabinet, a top hingedly secured thereto, adepending link pivotally secured to the top, a fixed ulcrum on thecabinet movably engaged by the link, and means for exerting` a forwardlydirected Vforce upon the free end oi' the link, the lower portion of thelink being rearwardly inclined whereby after an initial upward movementof the top the force acting upon the link tends to lift the top.

5. In combination, a cabinet, a top hingedlyV secured thereto, adepending` link pivotally secured to the top, a fixed fulcrum on thecabinet movably engaged by the link, and means for exerting,` aforwardiy directed force upon the free end o'f the link, the lowerportion of the link being' rearwardly inclined whereby after an initialupward movement of the top the force. acting` upon the link tends tolift the top, and said lower portion being further provided near its endwith a forward bend whereby the liiting or' the top is stopped.

.6. ln combination, a cabinet, a top hingedly secured thereto, adepending,- link pivotally secured to the top, roller journaled on thecabinet and engaged by the link and a spring' Secured to the free end ofthe link and exertingl a -forwardly directed force thereupon, theportion of the link above the fulcrum point ,being rearwardly inclinedwhen the top is closed and the pivot point then being horizontallyalined with the hinge pointoi the top, and the lower portion of the linkbeing rearwardly inclined whereby 'after initial movement of the top theforce acting upon the link tends to lift the top, said lower portionbeing` provided near its end with a 'forward bend whereby the lifting`or the top is stopped.

HENRY K. SANDELL.

